TEST LEADS Digital Low Resistance Ohmmeters

TEST LEADS Digital Low Resistance Ohmmeters TEST LEADS Digital Low Resistance Ohmmeters DLRO10X 247000 Extensive range of lead types and lengths from the leader in low resistance testing Wide variety of Kelvin clips, C-clamps, dual points and individual leads Used with a multitude of Megger DLROs from 2A to 600A output Contacts, bonding, battery straps, graphite electrodes, motor windings, and many more applications DLRO200 DLRO10HD Megger, the leader in low resistance testing, uses a Kelvinstyle test method to accurately take low resistance readings. In order to take accurate readings, the potential measurement is taken inside of the current injection points. Therefore, either a current lead in tandem with a separate potential lead or a duplex lead set is required. A wide variety of lead sets is available and it may be possible to design custom leads to suit special applications. INDIVIDUAL TEST LEADS Potential Lead Set Used in combination with 242041 current leads. Separates the C and P connections Termination: Hand spikes DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002, 247100, 247101, BT51 242021-7 7 ft (2 m) 242021-18 18 ft (5.5 m) 242021-30 30 ft (9 m) Current Clip Lead Set Used in combination with 242021 potential leads. Separates the C and P connections Current: 10 A Termination: Terminal clips DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002, 247100, 247101, BT51 242041-7 7 ft (2 m) 242041-18 18 ft (5.5 m) 242041-30 30 ft (9 m) 242021-7 242041-18

TEST LEADS Digital Low Resistance Ohmmeters Current Clip Lead Set This lead set is for current only and employs clamps with a notched anvil to ensure a solid connection. A potential lead set is also required to complete the Kelvin pair. Current: 100 A Termination: Clamps 247100, 247101 242144-16 16 ft (4.9 m) 242144-26 26 ft (8 m) DUPLEX TEST LEADS Helical Spring Point Leads Handspikes with spring loaded tips that compress and rotate to ensure good contact. Spacing between P and C probe tips is 0.4 in. (10 mm). Current: 10 A (Maximum current capacity 20 A for C/N EV6111-022, 10 A for longer lead lengths) 247100, 247101, DLRO10HD, DLRO10, DLRO10X 242011-7 7 ft (2 m) 242011-18 18 ft (5.5 m) 242011-30 30 ft (9 m) EV6111-022 8 ft (2.5 m) EV6111-023 20 ft (6 m) 242144-16 242011-7 Duplex Hand Spikes Duplex hand spikes with spring loaded tips. One probe has LEDs that operate with the DLRO10 for connection indication and live warning. The DLRO10X can indicate test limit pass/fail. Spacing between P and C probe tips is 0.23 in. (6 mm). Current: 10 A DLRO10HD, DLRO10, DLRO10X EV6111-503 4 ft (1.2 m) EV6111-517 8 ft (2.5 m) EV6111-518 4 ft (1.2 m) EV6111-503 (DH4)

TEST LEADS Digital Low Resistance Ohmmeters Helical Hand Spikes with Spring Points and Current Pushbutton Switch Hand spikes with a switch and spring-loaded tips that compress and rotate to ensure good contact. Depressing the momentary contact switch will start the current flow. The spacing between P and C probes is 0.4 in. (10 mm). Current: 10 A DLRO10, DLRO10X, 247000, 247001, 247002, 247101, 247102 Replaceable Needle Points These fine-tipped replaceable points are ideal for smaller parts and surfaces. Both of the P and C points are replaceable and are mounted in easy-to-hold handles. Current: 10 A DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002 242003-7 7 ft (2 m) 242009-18 18 ft (5.5 m) 242003-7 242009-18 Heavy Duty Fixed Point Hand Spikes Economical, light weight and built for durability. Spikes are not spring loaded. Spacing between C and P probe tips is 0.35 in. (9 mm). Current: 10 A DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002, 247100, 247101, BT51 242002-7 7 ft (2 m) Heavy Duty C-Clamps Kelvin clamps, current passes through the C-clamp and screw thread, the potential passes through a four-point anvil insulated from the clamp. Current: 100 A Clamp Capacity: 4 in. (10 cm) 247100, 247101 DLRO200*, DLRO600* (*only to 100 A) 242104-2-16 16 ft (5 m) 242104-2-26 26 ft (8 m) 242002-18 18 ft (5.5 m) 242002-30 30 ft (9 m) 242002-7 242104-2-16

TEST LEADS Digital Low Resistance Ohmmeters Heavy Duty C-Clamps (continued) Kelvin clamps, current passes through the C-clamp and screw thread, the potential passes through a four-point anvil insulated from the clamp. Current: 10 A Clamp Capacity: 2 in. (5 cm) DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002, 247100, 247101, BT51 242004-7 7 ft (2 m) 242004-18 18 ft (5.5 m) 242004-30 30 ft (9 m) High Current Lead Sets Lead set consists of pair of flexible high current capacity (600 A cont.) leads, together with a separate pair of lightweight potential leads. Current leads are fitted with heavy duty spring clamps. Jaw capacity of clamps: 2.4 in. (60 mm) Potential leads fitted with smaller HD crocodile clips. Jaw capacity of clips: 0.9 in. (22 mm) Current: 600 A Termination: Clamps DLRO200, DLRO600 EV6220-755 16 ft (5 m) EV6220-756 33 ft (10 m) EV6220-757 50 ft (15 m) EV6220-787 16 ft (5 m) 242004-18 Kelvin Clips Kelvin clips, current connection to one jaw, potential connection to other jaw. Easy connection to cables and small wires. Current: 10 A DLRO10HD, DLRO10, DLRO10X, 247000, 247001, 247002, 247100, 247101, BT51 Jaw Capacity 241005-7* 7 ft (2 m) 0.5 in. (1.3 cm) 242005-7** 7 ft (2 m) 0.5 in. (1.3 cm) 242006-7 7 ft (2 m) 1.5 in. (4 cm) 242006-18 18 ft (5.5 m) 1.5 in. (4 cm) 242006-30 30 ft (9 m) 1.5 in. (4 cm) *Gold plated **Silver plated EV6220-755 Wind Turbine Lightning Protection Test Lead Set Specially designed for measuring resistance of lightning protection circuit between wind turbine blade tip to ground. (Available through Megger U.S. Authorized Stocking Distributors.) Current: 10 A DLRO10, DLRO10X, BT51 1000-809 Termination 1000-809 Kelvin clip and hook ends on 328 ft (100 m) HD cable reel with friction brake DH2 lead with duplex hand 16 ft (5 m) spikes and hook end 241005-7

TEST LEADS Digital Low Resistance Ohmmeters Ordering Information for Individual Test Leads Type Termination Current 242021-7 Potential Hand Spikes 7 ft. (2 m) N/A * * 242021-18 Potential Hand Spikes 18 ft. (5.5 m) N/A * * 242021-30 Potential Hand Spikes 30 ft. (9 m) N/A * * 242041-7 Current Terminal Clips 7 ft. (2 m) 10 A * * 242041-18 Current Terminal Clips 18 ft. (5.5 m) 10 A * * 242041-30 Current Terminal Clips 30 ft. (9 m) 10 A * * 242144-16 Current Clamps 16 ft (5 m) 100 A 242144-26 Current Clamps 26 ft (8 m) 100 A DLRO10HD DLRO10 DLRO10X 247000 247001 247002 247100 247101 DL RO200 DLRO600 BT51 Ordering Information for Duplex Test Leads Termination Current 242011-7 7 ft. (2 m) 10 A *** *** EV6111-022 Helical Hand Spikes 8 ft. (2.5 m) 10 A 242011-18 with Spring Points 18 ft. (5.5 m) 10 A *** *** EV6111-023 20 ft. (6 m) 10 A 242011-30 30 ft. (9 m) 10 A EV6111-503* 4 ft. (1.2 m) 10 A EV6111-517* Duplex Hand Spikes 8 ft. (2.5 m) 10 A EV6111-518* 4 ft. ( 1.2 m) 10 A Helical Hand Spikes with 242009-18 Spring Points and 18 ft. (5.5 m) 10 A *** *** Current Push-button Switch 242002-7 Heavy-Duty 7 ft. (2 m) 10 A *** *** 242002-18 Fixed-Point Hand Spikes 18 ft. (5.5 m) 10 A *** *** 242002-30 30 ft. (9 m) 10 A *** *** 242003-7 Replaceable Needle Points 7 ft. (2 m) 10 A 242104-2-16 16 ft. (5 m) 100 A 242104-2-26 2 in. (5 cm) 26 ft. (8 m) 100 A 242004-7 Heavy-Duty C-Clamps 7 ft. (2 m) 10 A *** *** 242004-18 18 ft. (5.5 m) 10 A *** *** 242004-30 30 ft. (9 m) 10 A *** *** 242165S C-Clamp + Hand Spikes 165+7 ft. 10 A *** *** (50+2 m) 241005-7* 0.5 in. (1.3 cm) 7 ft. (2 m) 10 A *** *** 242005-7** Kelvin Clips 7 ft. (2 m) 10 A *** *** 242006-7 1.5 in. (4 cm) 7 ft. (2 m) 10 A *** *** 242006-18 Kelvin Clips 18 ft. (5.5 m) 10 A *** *** 242006-30 30 ft. (9 m) 10 A *** *** EV6220-755 Current Leads with 16 ft. (5 m) 600 A EV6220-756 HD Clips and Separate 33 ft. (10 m) 600 A EV6220-757 Potential Leads with Clips 50 ft. (15 m) 600 A EV6220-787 16 ft. (5 m) 600 A Kelvin clip and hook ends on HD cable reel 328 ft. (100 m) 10 A 1000-809 with friction brake (See Note) DH2 leads with duplex 16 ft. (5 m) 10 A hand spikes and hook end 1001-035 DH7 duplex handspikes 8 ft (2.5 m) 600 V * Gold plated ** Silver plated ***Can be used with the 10A module Note: 1000-809 is available through Megger U.S.Authorized Stocking Distributors. DLRO10HD DLRO10 DLRO10X 247000 247001 247002 247100 247101 DLRO200 DLRO600 BT51

TEST LEADS Digital Low Resistance Ohmmeters UK Archcliffe Road, Dover CT17 9EN England T +44 (0) 1 304 502101 F +44 (0) 1 304 207342 UKsales@megger.com UNITED STATES 4271 Bronze Way Dallas, TX 75237-1019 USA T 1 800 723 2861 (USA only) T +1 214 333 3201 F +1 214 331 7399 USsales@megger.com OTHER TECHNICAL SALES OFFICES Täby SWEDEN, Norristown USA, Sydney AUSTRALIA, Toronto CANADA, Trappes FRANCE, Kingdom of BAHRAIN, Mumbai INDIA, Johannesburg SOUTH AFRICA, and Chonburi THAILAND ISO STATEMENT Registered to ISO 9001:2000 Cert. no. 10006.01 DLRO_TL_DS_USen_V04 www.megger.com Megger is a registered trademark

DLRO TEST LEADS Digital Microhmmeter DLRO TEST LEADS Digital Microhmmeter DUPLEX PROBES 6111-022 DH1 2.5m/8 inch Duplex handspikes (2 incl.) with helical sprung contacts. 6111-023 DH2 6m/20 inch as DH1 but only 1 included 6111-024 DH3 9.0m as DH1 but only 1 included Duplex handspikes with sprung loaded tips that both compress and rotate, to ensure good contact. Maximum current capacity 20 A for DH1, 10 A for longer lead lengths. 10mm spacing between P and C tips on each probe. BT51, 247000 series, DLRO10 and DLRO10X 6111-503 DH4 1.2m Duplex handspikes (2 off), one with indicator lights 6111-517 DH5 - as DH4, 2.5m 6111-518 DH6 - as DH4, 600 V rated Duplex handspikes with sprung loaded tips. One probe has lights that operate with the DLRO10 for connection indication and live warning. With the DLRO10X, can indicate test limit pass/fail. Maximum current capacity 10 A. 6mm spacing between P and C tips on each probe. BT51 (not using indicator lights) 247000 series (not using indicator lights) DLRO10 and 10X (DH4 supplied as standard) Spare parts 25940-012 Replacement tips for DH4, 5 & 6 handspikes - needle 25940-014 Replacement tips for DH4, 5 & 6 handspikes - serrated

DLRO TEST LEADS Digital Microhmmeter 242003-7 Heavy duty fixed point hand spikes - replaceable tips 2m leads 242002-30 Heavy duty fixed point hand spikes 9m leads Lightweight and built for durability. Spikes are not spring loaded. Rated 10 A. 9mm spacing between C and P probe tips. Spare parts 5119 Replaceable needle points. BT51, DLRO10, DLRO10X and 247000 series. 242002-7 Heavy duty fixed point hand spikes 2m leads 242002-30 Heavy duty fixed point hand spikes 9m leads Lightweight and built for durability. Spikes are not spring loaded. Rated 10 A. 9mm spacing between C and P probe tips. BT51, DLRO10, DLRO10X and 247000 series. KELVIN CLIPS AND CLAMPS 241005-7 Kelvin Clips 2m leads - gold plated clips Kelvin clips, current connection to one jaw, potential connection to other jaw. Clips have 1.3 cm. jaw capacity. Easy connection to cables and small wires. Rated to 10 A. Gold plated clips for good contact and reduction in thermal EMFs BT51, DLRO10, DLRO10X and 247000 series

DLRO TEST LEADS Digital Microhmmeter 242005-7 Kelvin Clips 2m leads - Silver plated clips Kelvin clips, current connection to one jaw, potential connection to other jaw. Clips have 1.3 cm. jaw capacity. Easy connection to cables and small wires. Rated to 10 A. BT51, DLRO10, DLRO10X and 247000 series 242006-7 Kelvin Clips 2m leads 242006-18 Kelvin Clips 5.5m leads 242006-30 Kelvin Clips 9m leads Kelvin clips, current connection to one jaw, potential connection to other jaw. Clips have 4 cm. jaw capacity. Easy connection to cables and small wires. Rated to 10 A. BT51, DLRO10, DLRO10X and 247000 series. 242004-7 Heavy duty C-clamps 2m leads 242004-18 Heavy duty C-clamps 5.5m leads 242004-30 Heavy duty C-clamps 9m leads Kelvin clamps, current passes through the C-clamp and screw thread, the potential passes through a four point anvil insulated from the clamp. Clamps have a capacity of 5 cm and current rating of 10 A. BT51, DLRO10, DLRO10X and 247000 series.

DLRO TEST LEADS Digital Microhmmeter 242104-2-16 Heavy duty C-clamps 5m leads 242104-2-26 Heavy duty C-clamps 8m leads Kelvin clamps, current passes through the C-clamp and screw thread, the potential passes through a four point anvil insulated from the clamp. Clamps have a capacity of 10 cm and current rating of 100 A. DLRO200 and DLRO600 only to 100A. 247120 SEPARATE CURRENT AND POTENTIAL LEADS 242041-7 Current clip leadset 2m leads 242041-18 Current clip leadset 5.5m leads 242041-30 Current clip leadset 9m leads Used in combination with 242021 potential leads. Separates the C and P connections. Rated 10 A. BT51, DLRO10, DLRO10X and 247000 series. 242021-7 Potential spike leadset 2m leads 242021-18 Potential spike leadset 5.5m leads 242021-30 Potential spike leadset 9m leads Used in combination with 2420041 current leads. Separates the C and P connections. BT51, DLRO10, DLRO10X and 247000 series.

DLRO TEST LEADS Digital Microhmmeter HIGH CURRENT LEADSETS 6220-755 5m Lead set 2 x 50 mm 2 current leads with clamps and 2 x potential leads with clips. 6220-787 5m Lead set as above but 25mm 2 cable fitted. Lead set consists of pair of flexible high current capacity (600 A cont.) leads, together with a separate pair of lightweight potential leads. Current leads are fitted with heavy duty sprung clamps (60 mm jaw capacity). Potential leads fitted with smaller HD crocodile clips 22 mm jaw capacity). DLRO200 (6220-755 supplied as standard) DLRO600 (6220-755 supplied as standard) DLRO200-115 (6220-787 supplied as standard) 6220-756 10m Lead set 2 x 70mm 2 current leads with clamps and 2 x potential leads with clips. 6220-757 15m Lead set 2 x 95mm 2 current leads with clamps and 2 x potential leads with clips. Lead set consists of pair of flexible high current capacity (600 A cont.) leads, together with a separate pair of lightweight potential leads. Current leads are fitted with heavy duty sprung clamps (60 mm jaw capacity). Potential leads fitted with smaller HD crocodile clips 22 mm jaw capacity). DLRO200 (6220-755 supplied as standard) DLRO600 (6220-755 supplied as standard) UK Archcliffe Road Dover CT17 9EN England T +44 (0) 1304 502101 F +44 (0) 1304 207342 UNITED STATES 4271 Bronze Way Dallas TX 75237-1019 USA T 800 723 2861 (USA only) T +1 214 333 3201 F +1 214 331 7399 OTHER TECHNICAL SALES OFFICES Norristown USA, Toronto CANADA, Mumbai INDIA, Trappes FRANCE, Sydney AUSTRALIA and the Kingdom of BAHRAIN. Registered to ISO 9001:2000 Cert. no. Q 09290 Registered to ISO 14001-1996 Cert. no. EMS 61597 DLRO_TL_DS_en_V01 www.megger.com Megger is a registered trademark

DLRO test leads fitted with duplex Connectors DLRO test leads DLRO test leads fitted with duplex Connectors DLRO test leads Carry one lead set and swap terminations Simple push and twist for a quick change Lockable twist cap secures the leads Four terminal 10 A test lead system Warning / Indicator lights for DLRO10 range Extension leads available DESCRIPTION Duplex connect test lead system for use with any Megger 10 A DLRO and BT51 instruments DLRO10X adds Indication of pass / fail to user set test limits The Megger DLRO duplex connect four terminal test lead system is designed to provide the most cost effective and convenient way to provide the user with all of the test lead terminations and lead lengths required for the many different applications encountered in low resistance testing. At the centre of this unique test lead system is a bespoke connector allowing terminations such as kelvin clips or duplex test probes to be changed as required. There are two connector versions, one being fitted with indicator LEDs that operate with the DLRO10 range of instruments. The indicator LEDs provide enhanced safety and convenience with indications as follows: DLRO10, DLRO10X, DLRO10HD and DLRO10HDX Warning of connection to hazardous live voltage (Not DLRO10X, warning is given on the display) When continuity is made When a test complete and measurement is on instrument display All of these important indications are therefore seen near the point of connection without needing to view the instrument display. There is even a 6 m extension lead to provide the ultimate in flexibility. SAFETY WARNINGS These safety warnings must be read and understood before the instrument is used. Always refer to the user manual of the instrument being used with these test leads. Do not touch the universal connector during test or while connected to hazardous voltages. Whenever possible, circuits should be de-energised before testing. If it is impossible to de-energise the circuit, (e.g. high voltage batteries cannot be switched off while their connections are tested) the user must be aware of the dangers. The instrument terminals will become live when connected to the circuit. Therefore when used on hazardous voltages the Megger terminal cover (available separately) must be used. See the accessories section of this user guide. When running any test, or when attached to a test load, do not undo the modular connections. Isolate both test leads before changing any part of the modular leadset. These test leads on their own not safety CAT rated due to the bare hook terminations. However when fitted with insulating instrument terminal covers and a suitably rated test termination the overall safety CAT rating will be the lowest of the ratings between the instrument, the terminal covers and the test termination.

DLRO test leads fitted with duplex Connectors DLRO test leads For example if used with a DLRO10HD fitted with terminal cover part number 1002-390 and a pair of DP1-C duplex probes the safety rating of the complete system will be CAT III 300 V. However if the test terminations were changed to KC1-C Kelvin clips the safety rating would drop to <30 V as the KC1-C are un-rated. Testing inductive circuits can be hazardous: After testing an inductive load there will be an amount of energy stored in the inductance. This energy is released in the form of a discharge current. Disconnecting an inductive load while current is still flowing will cause a high voltage arc, which is a danger to both the user and the item under test The DLRO connector lit lead sets are fitted with a test in progress lamp associated with the TEST button which indicates that current is flowing in the C1-C2 loop. For testing large inductive resistances the current carrying leads should be connected securely to the item under test before starting the test It is not recommended that duplex handspikes be used to carry out tests on inductive loads. If inadvertently using the handspikes on an inductive load, the L1 lamp on the handspikes will flash amber while discharge current flows, thereby duplicating the function of the I lamp on the instrument. It is important to maintain contact until the L1 light stops flashing amber and turns green indicating the end of the test APPLICATION DUPLEX CONNECT SYSTEM COMPONENT PARTS CONNECT TEST LEADS WITH INDICATOR LIGHTS These duplex test leads are single test leads supplied without terminations. Test Lead (1 supplied) Order part number: TL1.5-CL 1.5 m connect lit 1006-456 TL3-CL 3 m connect lit 1006-458 TL6-CL 6 m connect lit 1006-459 This product is not intrinsically safe. Do not use in an explosive atmosphere. Do not operate the test leads or connect to any external system if any visible signs of damage are apparent or if they have been stored for prolonged periods in unfavourable conditions. Inspection Before each use of the test leads, perform a thorough visual inspection to confirm that their condition is good, with no damaged or broken insulation. The Measurement Category rating of the measurement system is that of the lowest rated component. If any part of the measurement leads is unrated, the instrument is safe for connection only up to 30 V. Lead resistances - C hook termination to connector 1.5m lead (1 off) 20 m ohm 3m leads (1 off) 30 m ohm 6m leads (1 off) 40 m ohm These duplex test leads are fitted with hook terminations for connecting to an instrument and a connector plug equipped with ultra-bright LED indicator lights viewable from any direction. Test connection terminations are supplied separately. The duplex connector incorporates a locking ring to prevent test connections being pulled off in use. Indicator lights operate with DLRO10, DLRO10X and DLRO10HD via third connection plug. The function of these indicator lights are listed at the beginning of this document in the introduction. These leads are designed to fit: DLRO10 DLRO10X DLRO10HD DLRO10HDX 2

DLRO test leads fitted with duplex Connectors DLRO test leads CONNECT TEST LEADS WITHOUT INDICATOR LIGHTS CONNECT EXTENSION LEAD These duplex test leads are single test leads supplied without terminations. Test Lead (1 supplied) Order part number: TL1.5-C 1.5 m connect 1006-452 TL3-C 3 m connect 1006-454 TL6-C 6 m connect 1006-455 Lead resistances - C hook termination to connector 1.5m lead (1 off) 20m ohm 3m leads (1 off) 30m ohm 6m leads (1 off) 40m ohm These duplex test leads are fitted with hook terminations for connecting to an instrument and a Connex plug. Test connection terminations are supplied separately. The duplex connector incorporates a locking ring to prevent test connections being pulled off in use. These leads are designed to fit: DLRO10 DLRO10X DLRO10HD DLRO10HDX There are separate versions available to fit the BT51 as follows: Test Lead (1 supplied) Order part number: TL3-C-BT51 3m connect for BT51 1007-023 TL6-C-BT51 6m connect for BT51 1007-024 EL6-C Lead resistance Extension Lead 6 m connect (1 supplied) 1006-460 40 m ohm This 6 m long duplex connect extension lead is designed to extend the duplex connect test leads that are without indicator lights. More than one extension lead can be used to create even longer test lead lengths. However the overall lead resistance must be taken into account. The higher the overall loop resistance, including the test piece, the lower the maximum test current available will be. Any 10 A DLRO instrument fitted with a pair of 3 m test leads and any test lead terminations (duplex probes or kelvin clips) can have up to 2 x 6 m extension leads used and still be able to supply 10 A test current. This is because the overall resistance of this combination is below the 100 m ohm lead resistance maximum specified. These extension leads are designed to fit any of these test leads: TL1.5-C TL3-C TL3-C-BT51 TL6-C TL6-C-BT51 Note: These extension leads will not fit any of the leads fitted with indicator lights 3

DLRO test leads fitted with duplex Connectors DLRO test leads LEAD TEST CONNECTION TERMINATIONS AVAILABLE SOLD INDIVIDUALLY DUPLEX CONNECT PROBE DUPLEX CONNECT TWIST PROBE DP1-C Duplex Probe 1 - connect Order part number: 1006-450 DTP1-C Duplex Twist Probe 1 - Connect Order part number: 1006-449 Duplex connect handspike with sprung loaded tips fitted with a connector socket for easy connection to any connector test lead. Replaceable probe tips have hardened needle points, gold plated for excellent low resistance contact. Tips are sprung to provide 1.3 kg of force using stainless steel springs. Ideal for general applications where a good reliable connection is required on none coated or corroded surfaces. To further limit the possibility of damage to test piece waffle tip, sometimes referred to a serrated tips are available as an option. Maximum current rating 10 A Connector to probe tip resistance 14 m ohm Probe spacing between P and C tips: 6 mm Will fit Any duplex connect test lead and extension lead Safety CAT III 600 V only when suitable terminal covers are used Spare / optional parts Order part number: Replacement needle tips 2003-551 Waffle / serrated tips 25940-014 Duplex connect handspike with sprung twisting tips fitted with a connector socket for easy connection to any connect test lead. As the probe is pressed onto the test piece the tips compress and twist at the same time providing 2.4 kg of spring force. Probe tips are hardened and tempered before four equal-spaced flats are ground to provide a square shape tip, making these probes ideal for cutting through surface coatings or corrosion on test piece for a good contact. To assist reliability the probes internal electrical connections are assisted by using an innovative volute spring eliminating the need for a separate current carrying brad. Maximum current rating 10 A Connector to probe tip resistance 14 m ohm Probe spacing between P and C tips: 10 mm Will fit Any Duplex Connex test lead and extension lead Safety <30 V only 4

DLRO test leads fitted with duplex Connectors DLRO test leads CONCENTRIC DUPLEX CONNECT PROBE HEAVY DUTY KELVIN CLIP CP1-C Concentric Probe 1 - connect Order part number: 1006-448 KC1-C Kelvin Clip 1 - connect Order part number: 1006-447 Duplex connect concentric handspike with sprung loaded potential tip fitted with a connector socket for easy connection to any connector test lead. The C connection is made via an outer hardened and tempered steel crown with two contact points or tips. The replaceable central potential probe tip has a hardened needle point, gold plated for excellent low resistance contact. The P tip is sprung to provide 1.3kg of force and uses a stainless steel spring. Ideal for general applications where a good reliable connection is required on none coated or corroded surfaces. The long probe length and small diameter makes this probe ideal for reaching deeply recessed terminal screws. There are also applications where connection to rivet heads or screw/bolt heads are required. To further limit the possibility of damage to test piece waffle tip, sometimes referred to a serrated tip is available as an option. Maximum current rating 10 A Connector to probe tip resistance 10 m ohm Probe tip spacing: Between two outer C tips 7.6 mm P tip central between two C tips with 3.8 mm spacing Probe dimensions: From finger guard to tip 110 mm Diameter is tapered from 14 mm nearest the finger guard to 11 mm at tip crown Will fit Any duplex connect test lead and extension lead Safety <30 V only Spare / optional parts Order part number: Replacement P needle tip 2003-551 Waffle / serrated P tip 25940-014 Duplex connect Kelvin Clip 1 is a heavy duty clip for general purpose applications. Maximum current rating 10 A Connector to probe tip resistance 14 m ohm Clip capacity: 40 mm Will fit Any duplex connect test lead and extension lead Safety <30 V only 5

DLRO test leads fitted with duplex Connectors DLRO test leads LARGE TOUCH PROOF INSULATED CLIP ADJUSTABLE JAW OPENING COMPLETE DUPLEX CONNECT LEAD SETS AVAILABLE PROBE LEAD-SETS KC2-C Kelvin Clip 2 - connect Order part number: 1006-451 Duplex connect Kelvin Clip 2 is a fully insulated touch proof clip for applications where a high safety rating is required. DH1-C 3M Duplex Handspike lead set, with connect (x2) Order part number: 1006-442 Two wire, four terminal duplex twist probe lead set 3m long. Consists of the following: DTP1-C Duplex Twist Probe 2 off TL3-C-BT51 3m lead connect 2 off Total leadset loop resistance 80m ohm BT51 BT51 120V Maximum current rating 20 A Connector to clip resistance 10m ohm Clip capacity: 52 mm to 7 5mm with sliding jaw Will fit Any duplex connect test lead and extension lead Safety CAT IV 600 V The actual safety CAT rating in use will always be the rating of the lowest part of the complete system For example if used with a DLRO10 without terminal covers the system will be unrated and must not be connected to live voltages above 30 V. In this example using a DLRO10HD a terminal cover should also be used DH2-C 6m / 20 version of DH1-C above but only 1 included Order part number: 1006-443 Single duplex twist probe lead - 6m long. Consists of the following: DTP1-C Duplex Twist Probe 1 off TL6-C-BT51 6m lead connect 1 off Total resistance - 1 lead + 1 probe 50m ohm BT51 BT51 120V 6

DLRO test leads fitted with duplex Connectors DLRO test leads KELVIN CLIP LEAD-SETS DH4-C Two wire, four terminal duplex probe lead set - 1.5 m One lead fitted with indicator lights. Order part number: 1006-444 KC1-TL3-C KL1-C Kelvin Clip 3m Lead set - connect (x2) Order part number: 1006-462 Two wire, four terminal duplex probe lead set 1.5 m long. One lead fitted with indicator lights. Consists of the following: DP1-C Duplex Probe 2 off TL1.5-C 1.5 m connect lead 1 off TL1.5-CL 1.5 m connect lead with indicator lights 1 off Total leadset loop resistance 48m ohm DLRO10 DLRO10X DLRO10HD DLRO10HDX Two wire, four terminal kelvin clip lead set 3m long. Consists of the following: KC1-C Kelvin clip 2 off TL3-C 3m connect lead 1 off TL3-CL 3m connect lead with indicator lights 1 off Total leadset loop resistance 88m ohm DLRO10 DLRO10X DLRO10HD DLRO10HDX DH4-CHDC Order part number: 1006-463 As DH4-C but supplied with DLRO10HD terminal Cover for CATIII 300 V rating DH5-C Order part number: 1006-445 as DH4-C but 3m long KC2-TL3-C KL2-C Insulated Kelvin Clip - Test Lead 3 m connect (x2) Order part number: 1006-461 Two wire, four terminal insulated kelvin clip lead set 3m long. Consists of the following: KC2-C Insulated kelvin clip 2 off TL3-C 3 m connect lead 1 off TL3-CL 3 m connect lead with indicator lights 1 off 7

DLRO test leads fitted with duplex Connectors DLRO test leads Total leadset loop resistance DLRO10, DLRO10X DLRO10HD DLRO10HDX 80m ohm Duplex connect system Component parts - one of each supplied TL1.5-CL Connect test leads with indicator light - 1.5 m 1006-456 TL3-CL Connect test leads with indicator light - 3 m 1006-458 TL6-CL Connect test leads with indicator light - 6 m 1006-459 TL1.5-C Connect test lead without indicator light - 1.5 m 1006-452 TL3-C Connect test lead without indicator light - 3 m 1006-454 TL6-C Connect test lead without indicator light - 6 m 1006-455 TL3-C-BT51 Connect test leads for BT51-3 m 1007-023 TL6-C-BT51 Connect test leads for BT51-6 m 1007-024 EL6-C Connect Extension Lead - 6 m 1006-460 Lead test connection terminations available Terminations sold individually DP1-C Duplex connect probe 1006-450 DTP1-C Duplex connect twist probe 1006-449 CP1-C Concentric duplex connect probe 1006-448 KC1-C Heavy duty kelvin clip 1006-447 KC2-C Insulated connect Kelvin clip 1006-451 ORDERING INFORMATION Order Code Order Code Complete duplex connect lead sets DH1-C Two wire, four terminal duplex twist probe lead set - 3m 1006-442 DH2-C Single duplex twist probe lead - 6m 1006-443 DH4-C Two wire, four terminal duplex probe lead set - 1.5 m One lead fitted with indicator lights. 1006-444 DH4-CHDC Two wire, four terminal duplex probe lead set 1.5 m long One lead fitted with indicator lights DLRO10HD terminal Cover 1006-463 DH5-C Two wire, four terminal duplex probe lead set - 3 m One lead fitted with indicator lights. 1006-445 Kelvin clip lead-sets Two wire, four terminal kelvin clip lead set - 3 m 1006-462 Two wire, four terminal insulated kelvin clip lead set - 3 m 1006-461 SALES OFFICE Megger Limited Archcliffe Road Dover CT17 9EN England T +44 (0) 1304 502101 E UKsales@megger.com DLROTestLeads_DS_en_V06 www.megger.com ISO 9001 The word Megger is a registered trademark